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Ho(AlH2)4

Alexandria ALEX

Alex-ID: agm007338474 · Space group: C2/m (#12)

Basic Information

Formula
Ho(AlH2)4
Alex-ID
agm007338474
Elements
3
Sites
13
Space group
C2/m (#12)
Crystal system
monoclinic
Volume
141.28
ų
Cell a
5.5397
Å
Cell b
5.5397
Å
Cell c
5.4200
Å
α angle
83.05
°
β angle
83.05
°
γ angle
59.06
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ho(AlH2)4
Ho
1.00 · 7.7%
Al
4.00 · 30.8%
H
8.00 · 61.5%

Energy & Stability

Energy above hull
0.2988
eV/atom
Formation energy
0.0178
eV/atom
Corrected total energy
-45.2474
eV
Raw total energy
-45.2474
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
2.8503
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB4C8_274_spg12

Decomposition

AlH3 HoH3 Al

Computed at

2024-02-08 20:54:10

Citation

Alexandria website
https://alexandria.icams.rub.de/
Attribution

The crystal structure and related material properties of this entry were obtained from the Alexandria database (Alex-ID: agm007338474).

Reference

Th. Cavignac, J. Schmidt, P.-P. De Breuck, A. Loew, T. F. T. Cerqueira, H.-C. Wang, A. Bochkarev, Y. Lysogorskiy, A. H. Romero, R. Drautz, S. Botti and M. A. L. Marques. AI-Driven expansion and application of the Alexandria database. J. Phys. Mater. 9, 025014 (2026). https://doi.org/10.1088/2515-7639/ae6620

BibTeX
@article{Cavignac2026Alexandria,
  author  = {Cavignac, Th{\'e}o and Schmidt, Jonathan and De Breuck, Pierre-Paul and Loew, Antoine
             and Cerqueira, Tiago F. T. and Wang, Hai-Chen and Bochkarev, Anton
             and Lysogorskiy, Yury and Romero, Aldo H. and Drautz, Ralf and Botti, Silvana
             and Marques, Miguel A. L.},
  title   = {{AI}-Driven expansion and application of the {A}lexandria database},
  journal = {Journal of Physics: Materials},
  year    = {2026},
  volume  = {9},
  number  = {2},
  pages   = {025014},
  doi     = {10.1088/2515-7639/ae6620},
  url     = {https://doi.org/10.1088/2515-7639/ae6620}
}

3D Crystal Structure Rendering

Loading 3D structure…

Style: Ball & Stick
Raw CIF Data
# CIF generated by HEAS from Alexandria entry agm007338474
data_agm007338474
_cell_length_a     5.53969
_cell_length_b     5.53969
_cell_length_c     5.41998
_cell_angle_alpha  83.05433
_cell_angle_beta   83.05433
_cell_angle_gamma  59.05989
_cell_volume       141.27679
_symmetry_space_group_name_H-M 'P 1'
_symmetry_Int_Tables_number 1
loop_
_symmetry_equiv_pos_as_xyz
  'x, y, z'
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
  Ho1 Ho 0.50000 0.50000 0.50000 1.00000
  Al1 Al 0.23965 0.76035 0.00000 1.00000
  Al2 Al 0.76035 0.23965 0.00000 1.00000
  Al3 Al 0.81130 0.81130 0.49399 1.00000
  Al4 Al 0.18870 0.18870 0.50601 1.00000
  H1 H 0.88681 0.47118 0.34189 1.00000
  H2 H 0.47118 0.88681 0.34189 1.00000
  H3 H 0.66428 0.66428 0.72681 1.00000
  H4 H 0.88385 0.88385 0.96310 1.00000
  H5 H 0.11615 0.11615 0.03690 1.00000
  H6 H 0.33572 0.33572 0.27319 1.00000
  H7 H 0.52882 0.11319 0.65811 1.00000
  H8 H 0.11319 0.52882 0.65811 1.00000
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